Can't get my 1939 - 9N to start with the starter. If I pull it, it will start within 15' and run all day (or until out of gas in the middle of my wood lot). Will not restart with the starter if shut off or stalled. No smoke or issues when running.
History: Tractor sat for YEARS. I rebuilt the engine (new rings, pistons, liners) as when I would pull start it it would smoke up the whole farm. Dry compression is now 110, 110, 88, 112.
Converted to 12volts with new battery, alternator, etc.
I thought the old carb. was the issue so after rebuilding it x2, I bought a new one. Idles much better now but still will not fire or start with the starter button. The starter spins very fast. (The previous owner as an electrician and he put giant cables from the battery to the starter, etc.)
Has spark on all cylinders when I check with test plug.
Just to complicate things. Had to install 2 head gaskets as the #4 cylinder (112psi compression) "bubbles" into the water jacket under compression. I can hear it but it is not bad with 2 head gaskets. I will resleeve this winter.
Not sure why #3 cycl is low on compression. Will the low compression cause the starting issue??
Any wisdom and advice would be appreciated.
History: Tractor sat for YEARS. I rebuilt the engine (new rings, pistons, liners) as when I would pull start it it would smoke up the whole farm. Dry compression is now 110, 110, 88, 112.
Converted to 12volts with new battery, alternator, etc.
I thought the old carb. was the issue so after rebuilding it x2, I bought a new one. Idles much better now but still will not fire or start with the starter button. The starter spins very fast. (The previous owner as an electrician and he put giant cables from the battery to the starter, etc.)
Has spark on all cylinders when I check with test plug.
Just to complicate things. Had to install 2 head gaskets as the #4 cylinder (112psi compression) "bubbles" into the water jacket under compression. I can hear it but it is not bad with 2 head gaskets. I will resleeve this winter.
Not sure why #3 cycl is low on compression. Will the low compression cause the starting issue??
Any wisdom and advice would be appreciated.